{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "206345",
    "entityType": "User",
    "nonce": "0xc84643aa57f665a2f9794a1aa459f5a87aef82cf750b994dca9a401bc7af5568",
    "signature": "0xbf3b08171af68ec8f91d2dc33db603a6f4dbb29beae6ee58f6f7d83aa5020c0b6e1b59d604f96c51c52a627964071f5696d582bff64916c8831e96f6da7dfde41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}